(24) items including (12) 2 1/2-inch coffee cups and (12) 5 1/2-inch coffee saucers, all having maker marks and hand painted “20 / 3513” to undersides, most cup and saucer sets having matching two / three-digit set numbers, each cup having a different botanical illustration from the Flora Danica botanical encyclopedia to sides and the corresponding taxonomic polynomial in black Latin script to underside